Disabled boy receives prosthetic blade for Christmas just like his hero Jonnie Peacock

Disabled boy, 4, receives prosthetic blade for Christmas just like his hero Jonnie Peacock Rio had lower right leg amputated at 14 months after being born without a knee or ankle jointHad got around using rigid NHS false limbAsked parents for a blade after watching Paralympics and meeting 100m runner Jonnie PeacockReceived new limb for Christmas thanks to Dorset-based company | UPDATED: 01:10 GMT, 26 December 2012 Like many little boys, four-year-old Rio Woolf dreams of following in the footsteps of his sporting idols.

Finding exercise a chore? How a virtual partner can trick you into working harder

Finding exercise a chore How a virtual partner can trick you into working twice as hard Women cycling alongside a virtual partner exercised for twice as long as those going solo | UPDATED: 11:11 GMT, 17 May 2012 Those who are struggling to keep going to the gym should think about recruiting an exercise partner – as long as they are a little fitter than you.